• Title/Summary/Keyword: Core Sequence

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PLP-1 Binds Nematode Double-stranded Telomeric DNA

  • Im, Seol Hee;Lee, Junho
    • Molecules and Cells
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    • v.20 no.2
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    • pp.297-302
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    • 2005
  • The integrity and proper functioning of telomeres require association of telomeric DNA sequences with specific binding proteins. We have characterized PLP-1, a $PUR{\alpha}$ homolog encoded by F45E4.2, which we previously identified as a candidate double stranded telomere binding protein, by affinity chromatography followed by mass spectrometry. PLP-1 bound double-stranded telomeric DNA in vitro as shown by competition assays. Core binding was provided by the third and fourth nucleotides of the TTAGGC telomeric repeat. This is quite different from the binding sequence of CEH-37, another C. elegans telomere binding protein, suggesting that multiple proteins may bind nematode telomeric DNA simultaneously in vivo.

Several Issues Closely Related to Construction in the Structural Design of Wuhan Center

  • Jian, Zhou
    • International Journal of High-Rise Buildings
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    • v.11 no.3
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    • pp.189-196
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    • 2022
  • The practical difficulties of construction will impose many restrictions on the structural design, and the construction method can also provide unexpected ideas for solving design problems. Through the discussion of three issues closely related to construction in the structural design of Wuhan Center, this paper illustrates the importance of in-depth consideration of the construction situations in the structural design stage. The topics of "Connection between Embedded Steel Plates in Steel Plate Composite Shear Wall" and "Connection Joint between Outrigger Truss and Core Wall" are about how to facilitate on-site construction by simplifying and optimizing detail design. The topic of "Adjusting Internal Force Distribution by Optimizing Construction Sequence" is about how to make the construction process a tool for structural design.

Complete Genome Sequence of Priestia megaterium Hyangyak-01 Isolated from Rhizosphere Soil of Centella asiatica

  • Kyeongmo Lim;HyungWoo Jo;Jerald Conrad Ibal;Min-Chul Kim;Hye-Been Kim;Dong-Geol Lee;Seunghyun Kang;Jae-Ho Shin
    • Microbiology and Biotechnology Letters
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    • v.51 no.3
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    • pp.303-305
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    • 2023
  • In this study, we report the complete genome sequence of Priestia megaterium strain HyangYak-01, which was isolated from the rhizosphere soil of Centella asiatica. The genome consists of 5,086,279 bp of sequences with 38.2 percent GC content and 5,111 coding genes. The genome contains several important genes related to plant growth-promoting activities, which were also confirmed with in vitro media assays.

Single-molecule fluorescence measurements reveal the reaction mechanisms of the core-RISC, composed of human Argonaute 2 and a guide RNA

  • Jo, Myung Hyun;Song, Ji-Joon;Hohng, Sungchul
    • BMB Reports
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    • v.48 no.12
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    • pp.643-644
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    • 2015
  • In eukaryotes, small RNAs play important roles in both gene regulation and resistance to viral infection. Argonaute proteins have been identified as a key component of the effector complexes of various RNA-silencing pathways, but the mechanistic roles of Argonaute proteins in these pathways are not clearly understood. To address this question, we performed single-molecule fluorescence experiments using an RNA-induced silencing complex (core-RISC) composed of a small RNA and human Argonaute 2. We found that target binding of core-RISC starts at the seed region of the guide RNA. After target binding, four distinct reactions followed: target cleavage, transient binding, stable binding, and Argonaute unloading. Target cleavage required extensive sequence complementarity and accelerated core-RISC dissociation for recycling. In contrast, the stable binding of core-RISC to target RNAs required seed-match only, suggesting a potential explanation for the seed-match rule of microRNA (miRNA) target selection.

Differential Expression of HCV Core Protein from Two Different Quasispecies

  • Yu, Kyung-Lee;You, Ji-Chang
    • Biomolecules & Therapeutics
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    • v.17 no.2
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    • pp.151-155
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    • 2009
  • Hepatitis C virus (HCV) has genetic diversity like most of RNA viruses. HCV major genotypes are classified into several subtypes which are further divided into quasispecies having, genetically different but closely related variants. The HCV core that is a nucleocapsid protein located at the amino terminus of the viral polyprotein is relatively a conserved protein among the HCV isolates and thus it has been one of plausible targets for anti-HCV drug development. However, different quasispecies of HCV core gene have also been found. In this study, we compared the expression level of core protein between two different quasispecies of HCV genotype 1b. Our data demonstrate that a little differences of amino acid sequence lead to substantial difference of expression level. It might be another important reason of different pathogenesis among HCV infected patients.

Photometric Orbit of TX UMa (TX UMa의 측광학적 궤도 요소)

  • 오규동
    • Journal of Astronomy and Space Sciences
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    • v.3 no.1
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    • pp.41-51
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    • 1986
  • Two-photometric light curves(Oh and Chen 1984) of the eclipsing binary TX UMa have been analyzed by the method of differential corrections of the model of Wilson and Devinney (1971). The system found to be simi-detached with the cooler and less massive component filling its Roche lobe. The absolute dimensions have been derived from the results of the photometric solutions with the spectroscopic elements of Hiltner(1945). It is assumed that the B8V primary component is on the zero main sequence stage of the core hydrogen burning and the secondary is at the core contraction stage after the shell hydrogen burning stage according to the Iben's (1967) evolutional tracks for $3.0m_\odot$ and $1.0m_\odot$ .

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Complete Genome Sequence of the Enterobacter asburiae IK3 Isolated from a Soybean (Glycine max) Rhizosphere

  • Sihyun Park;GyuDae Lee;Ikwhan Kim;Yeongyu Jeong;Jae-Ho Shin
    • Microbiology and Biotechnology Letters
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    • v.51 no.3
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    • pp.306-308
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    • 2023
  • This research presents the whole-genome sequence of Enterobacter asburiae strain IK3, which was isolated from the rhizosphere soil of soybean (Glycine max). The genome of the strain is composed of a single chromosome with 4 plasmids, total size of 5,084,040 bp, and the GC content is 55.5%.

Realized Value Creation; New Construction in Constrained Urban In-fill Sites

  • Hadley, Nathaniel C.;Thornton, Charles H.
    • International Journal of High-Rise Buildings
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    • v.7 no.1
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    • pp.33-46
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    • 2018
  • The Case Study prepared by PCPA and Lift Group will identify a growing development problem in urban areas; high value project sites that are restrictive in size or "tight" are underutilized and underdeveloped. In an effort to remedy this problem, our team will evaluate a design program through the lens of both conventional construction and Core Cantilever Construction. It is also important to differentiate between Core Cantilever construction and the plagued "Lift Slab" construction method as they may be confused, due to the top down construction sequence. This article will demonstrate that constraints inherent to conventional construction techniques prohibit economically viable development of these project sites, while Core Cantilever construction methods increase the projects value by reducing construction timelines and increasing the useable floor area.

Comparative studies of the five edible mountain vegetables by DNA marker fingerprinting (DNA marker 지문법에 의한 취나물 5종 (청옥취 , 개미취 , 참취 , 수리취 , 곰취)의 비교연구)

  • 유기억
    • Korean Journal of Plant Resources
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    • v.9 no.3
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    • pp.305-310
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    • 1996
  • Five edible mountain vegetables(Saussurea sp. Aster tataricus, A. scaber. Synurus deltoides, Ligularia fischeri) were investigated on the basis of amplified DNA polymorphisms resulted from PCR (polymerase chain reaction) analysis. The sampled plants consisted of 38 individuals in 5 taxa. Only 10 primers out of 62 primers (60 random [10-mer] primers, two 15-mer [M13 core sequence, and (GGAT) sequence]) tested gave rise to polymorphisms in all of the tested plants, producing 176 DAN fragments amplified. Intraspecific polymorphisms found in each taxa showed intraspecies constancy (31.1-61.1%) in the banding patterns of individual plants: Saussurea sp. 31.1%, 15 bands, Aster tataricus, 40.9%, 18 bands, A. scaber. 38.5%, 15 bands. Synurus deltoides, 34.7%, 17 bands, and Ligularia fischeri, 61.1%, 22 brands, respectively. All five species were well classified from each other at the 0.93 level of similarity index value. Intraspecific and interspecific variations were appeared at the levels ranging from 0.62 to 0.99. Based on these results, our PCR analyses support the previous data derived from external morphology of the 5 edible mountain vegetables, but very low levels o intraspecific variations were detected in all of these taxa.

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